Below
are typical signatures of Kuniyoshi’s from different years.Like most artists, his signature changed over
time, and these changes may be used to date Kuniyoshi’s prints.Censor’s seals, the presence or absence of
actors’ names, identifiable kabuki
productions and more nebulous stylistic considerations may also be used.The subject of dating Kuniyoshi’s prints is
dealt with extensively in the book Kuniyoshi
by Basil William Robinson (1961, Victoria and AlbertMuseum, London)

Year: 1816

Signature:
Saihôsha Kuniyoshi ga (採芳舎国芳画)

Year: 1831

Signature:
Ichiyûsai Kuniyoshi ga (一勇斎国芳画)

Year: 1831

Signature:
Ichiyûsai Kuniyoshi ga (一勇斎国よし画)

The “yoshi”
character is written in hiragana as
よし
instead of the usual 芳.